Fill Factor

Fill factor, in the context of solar cell technology, is defined as the ratio (given as percent) of the actual maximum obtainable power, (Vmp x Jmp) to the theoretical (not actually obtainable) power.

In the context of photography and cameras, the fill factor indicates the size of the light sensitive photodiode relative to the surface of the pixel. Each pixel has around it an extra electronics. That’s why fill factor tends to be quite small, especially for Active Pixel Sensors which have more per pixel circuitry. To overcome this limitation, often an array of microlenses is placed on top of the sensor.

13 Responses to “Fill Factor”

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